Water cycle refers to water in different parts of the earth, which changes its state to another part of the earth by absorbing the energy of the sun. For example, the water on the ground is evaporated by the sun into water vapor in the air.
The state of water on the earth includes solid, liquid and gaseous. Most of the water in the earth exists in the atmosphere, ground, underground, lakes, rivers and oceans.
Water moves from one place to another through physical processes, such as evaporation, precipitation, infiltration, surface and subsurface flows. For example, water flows from rivers to the sea. The water cycle was discovered by Perot and Marriott in the 16th and 17th centuries.
中文翻译:
水循环是指地球上不同的地方上的水,通过吸收太阳的能量,改变状态到地球上另外一个地方。例如地面的水分被太阳蒸发成为空气中的水蒸气。而水在地球的状态包括固态、液态和气态。而地球中的水多数存在于大气层、地面、地底、湖泊、河流及海洋中。
水会通过一些物理作用,例如:蒸发、降水、渗透、表面的流动和地底流动等,由一个地方移动到另一个地方。如水由河川流动至海洋。水循环由16,17世纪佩罗和马略特发现。
扩展资料
1、水循环的主要作用
(1)水是所有营养物质的介质,营养物质的循环和水循环不可分割地联系在一起。
(2)水对物质是很好的溶剂,在生态系统中起着能量传递和利用的作用。
(3)水是地质变化的动因之一,一个地方矿质元素的流失,而另一个地方矿质元素的沉积往往要通过水循环来完成。
2、水循环的地理意义
(1)水在水循环这个庞大的系统中不断运动、转化,使水资源不断更新(所谓更新,在一定程度上决定了水是可再生资源)。
(2)水循环维持全球水的动态平衡。
(3)水循环进行能量交换和物质转移。陆地径流向海洋源源不断地输送泥沙、有机物和盐类;对地表太阳辐射吸收、转化、传输,缓解不同纬度间热量收支不平衡的矛盾,对于气候的调节具有重要意义。
(4)造成侵蚀、搬运、堆积等外力作用,不断塑造地表形态。
(5)水循环可以对土壤的优质产生影响。
参考资料来源:百度百科-水循环
Water is the process of natural process, involving global water evaporation, atmospheric moisture transmission, surface water and groundwater circulation and various forms of water storage storage. Precipitation and evaporation and runoff is the hydrologic cycle the three major link, this three constitutions of water cycle way determines the global water balance, also decides, an area of the water resources. Water evaporation is one of the most important functions of. Produced by evaporation of water into the air and over atmospheric activities and sports. Atmospheric water vapor mainly comes from the ocean, part of that is from the mainland surface evaporation. Water vapor in the atmosphere of the cycle is evaporation - condensation - precipitation and the cyclical of evaporation process. Ocean water vapor above can be transported to the land above water vapor condensation precipitation, called external precipitation, Direct condensation of water over the mainland, says its steam rainfall precipitation.
其中前几句可有可无 不想写的话可以不写
中文:
水循环是多环节的自然过程,全球性的水循环涉及蒸发、大气水分输送、地表水和地下水循环以及多种形式的水量贮蓄。 降水、蒸发和径流是水循环过程的三个最主要环节,这三者构成的水循环途径决定着全球的水量平衡,也决定着一个地区的水资源总量。蒸发是水循环中最重要的环节之一。由蒸发产生的水汽进入大气并随大气活动而运动。大气中的水汽主要来自海洋,一部分还来自大陆表面的蒸散发。大气层中水汽的循环是蒸发-凝结-降水-蒸发的周而复始的过程。海洋上空的水汽可被输送到陆地上空凝结降水,称为外来水汽降水;大陆上空的水汽直接凝结降水,称内部水汽降水。
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Answer:
The process of water cycle